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Medical imaging

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Question 2

A contrast medium is used during an X-ray scan of a patient to improve the quality of the image. Which statement is correct?

A

Barium is used as a contrast medium because it has a large atomic number.

B

Technetium-99m is commonly used as an X-ray contrast medium.

C

Contrast media must have a low attenuation coefficient for X-rays.

D

A coupling gel is a type of contrast medium used in ultrasound.

Markscheme

Medical imaging Questions

  1. A Level
  2. /Physics
  3. /Medical imaging

25 exam-style questions on OCR A A Level Physics Medical imaging, covering Using X-rays, Diagnostic methods in medicine, and Using ultrasound. Each one has a worked solution and a mark scheme showing where the marks go.

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